EP 3355582 B1 20210428 - AMVR-BASED IMAGE CODING METHOD AND APPARATUS IN IMAGE CODING SYSTEM
Title (en)
AMVR-BASED IMAGE CODING METHOD AND APPARATUS IN IMAGE CODING SYSTEM
Title (de)
AUF AMVR BASIERENDES BILDCODIERUNGSVERFAHREN UND -VORRICHTUNG IN EINEM BILDCODIERUNGSSYSTEM
Title (fr)
APPAREIL ET PROCÉDÉ DE CODAGE D'IMAGE FONDÉ SUR UNE PLAGE DE VECTEURS DE MOUVEMENT ADAPTATIVE (AMVR) DANS UN SYSTÈME DE CODAGE D'IMAGE
Publication
Application
Priority
- US 201562222791 P 20150924
- KR 2016002161 W 20160303
Abstract (en)
[origin: EP3355582A1] An image encoding method according to the present invention, which is performed by an encoding apparatus, comprises the steps of: generating an adaptive motion vector range (AMVR) enable flag; deriving a motion vector difference (MVD) with respect to a current block; deriving a representative MVD value of an MVD range including a value of the MVD from among a plurality of MVD ranges; generating a coded MVD corresponding to the representative MVD value; and outputting the AMVR enable flag and the coded MVD through a bit stream. According to the present invention, the amount of bits allocated to an MVD can be reduced and the overall coding efficiency can thus be increased.
IPC 8 full level
H04N 19/139 (2014.01); H04N 19/176 (2014.01); H04N 19/503 (2014.01); H04N 19/51 (2014.01); H04N 19/517 (2014.01); H04N 19/52 (2014.01)
CPC (source: EP KR US)
H04N 19/139 (2014.11 - EP KR US); H04N 19/176 (2014.11 - EP US); H04N 19/184 (2014.11 - KR); H04N 19/503 (2014.11 - EP US); H04N 19/51 (2014.11 - US); H04N 19/517 (2014.11 - EP); H04N 19/52 (2014.11 - EP KR); H04N 19/70 (2014.11 - KR); H04N 19/517 (2014.11 - US); H04N 19/52 (2014.11 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3355582 A1 20180801; EP 3355582 A4 20190417; EP 3355582 B1 20210428; CN 108353176 A 20180731; CN 108353176 B 20220503; JP 2018533298 A 20181108; KR 20180059444 A 20180604; US 10547847 B2 20200128; US 2018270485 A1 20180920; WO 2017052009 A1 20170330
DOCDB simple family (application)
EP 16848735 A 20160303; CN 201680061199 A 20160303; JP 2018515808 A 20160303; KR 2016002161 W 20160303; KR 20187007986 A 20160303; US 201615761356 A 20160303